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Proceedings Paper

Optically tunable Fano-resonant filter based on graphene
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Paper Abstract

We propose a high-Q optically tunable terahertz (THz) filter consisting of subwavelength multilayer graphene/ dielectric/metal asymmetric square split-ring resonators (SRR) within a unit cell. The obtained simulation results demonstrate that Fano resonance can be efficiently modulated under IR-radiation of different intensity value. The modulation depth of Fano resonance can achieve about 60% under the maximum considered pumping intensity (corresponding to 0.4 eV of Fermi energy) with the Q-factor of about 135. The proposed metasurface provides narrow filtering of incident light as well as sensing applications.

Paper Details

Date Published: 24 August 2017
PDF: 5 pages
Proc. SPIE 10343, Metamaterials, Metadevices, and Metasystems 2017, 103432V (24 August 2017); doi: 10.1117/12.2277542
Show Author Affiliations
Alexander N. Grebenchukov, ITMO Univ. (Russian Federation)
Anton D. Zaitsev, ITMO Univ. (Russian Federation)
Mikhail G. Novoselov, ITMO Univ. (Russian Federation)
Egor V. Kornilov, ITMO Univ. (Russian Federation)
Mikhail K. Khodzitsky, ITMO Univ. (Russian Federation)

Published in SPIE Proceedings Vol. 10343:
Metamaterials, Metadevices, and Metasystems 2017
Nader Engheta; Mikhail A. Noginov; Nikolay I. Zheludev, Editor(s)

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